Finding the Fourth Proportional to 135,053.88, 186,364.62 and 74,623.80
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Solution
The fourth proportional to 135,053.88, 186,364.62 and 74,623.80 is: 102,975.47
Step by Step Solution
- Step 1: Write the proportion equation
135,053.88 : 186,364.62 = 74,623.80 : x - Step 2: Convert to fraction form
135,053.88/186,364.62 = 74,623.80/x - Step 3: Cross multiply
135,053.88x = 186,364.62 × 74,623.80 - Step 4: Simplify right side
135,053.88x = 13,907,236,129.96 - Step 5: Solve for x
x = 13,907,236,129.96/135,053.88 - Step 6: Final answer
x = 102,975.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.